Locking and releasing device for cultivators.



H. PETERSEN. LOOKING AND RELEASING DEVICE FOR GULTIVATORS.

APPLICATION FILED DEO.17, 1913.

1,111,920. Patented Sept 29,1914.

2 SHEBTSSHEET l.

W, WWW M20 WZCVIJLQZZJ- Q THE NORRIS Fcmxs CO4. PHOTO-LITHQ. WASHINGTON D, c.

H. PETERSEN.

LOOKING AND RELEASING DEVICE FOR GULTIVATORS.

APPLIOATION 11,111) DBO.17, 1913.

1, 1 1 1,920, Patented Sept, 29, 1914.

2 SHEETS-SHEET 2. @43 16 M- $7 wan;

711E NOR'RIS PETERS C0,. PHOTO-LITHO., WASHINGTON. D. c.

HENRY PETERSEN, or mom UBURNJQ A.

LOCKING AND"RELEASI1\TG DEVICE FOR CU LIIVATORS.

Specification. of Letters Patent. I Patented SeptQ29, 1914.

Application filed December 17,1913. SerialNo. 807,161.

To all whom it may concern Be it known that I,I'IENRY PETERSEN, a citizen of the United States of America, and resident of Mount Auburn, county of Benton, and State of Iowa, have invented certain new and useful Improvements in Looking and Releasing Devices for Cultivators, of which the following is a specification.

This invention relates to certain new and useful improvements in looking and releas ing devices for the mast of a cultivator, and it has for its objects among others to provide a simple and efiicient locking and releasing device that can be readily attached or applied to mast-cultivators.

I employ a mastmoving bar which is pivotally connected with the mast at one end and at its other end movable with relation to a substantially vertical member, which latter is pivotally connected with the lift ing lever which raises and lowers the. gang frame. It is at the point where this mastmoving bar and the vertical member intersect that I provide my improved lock and release device, which embodies a male and a female member arranged for cooperation in such a manner that when the gang frame is raised the parts so interlock automatically as to hold the parts securely in such raised parts throughout the different views.

position. l/Vhen the gang frameis lowered,

the parts move together and the said menr- Y hers are not disengaged until the mast reaches a point just to the rear of the vertical, when a member, a cam, or toe, or the like, is brought into such position as toauto matically cause the raising of the one memher with relation to the other so as to release the same from their interlocking engage ment and the mast-moving bar is free to move without affecting the said vertical member. i 1

Other objects and advantages of the in vention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claims.

The invention is capable of embodiment in a variety of forms, some of which are herein illustrated, and the construction is such that the looking members may be employed in an inverted or reversed position, if desired. v

T he invention is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form apart of this specification, and in which?- Figure 1 is a side elevation of a portion of the cultivator with my present improvements applied thereto. Fig. 2 is aperspective detail of parts constituting the locking 1 and releasing device. Fig. 3 is an enlarged perspective detail of. one portion of the lockiing and releasing mechanism. 1 view, partly in section, with portions broken away, illustrating the two members of the {locking and releasing device. detail in plan with portions broken away. Fig. 6 is a view,.partly in longitudinal see- Fig. 4 is a Fig. 5is a tion and partly in elevation, showing a modified form of locking device with the parts disengaged. Fig. 7 is a similar view showing the parts in interlocked position. Fig. 8 is a perspective detail, with a portion broken away, of the femaleportion of the lock. Fig. 9 isa detail in elevation with a portion broken away and a part in'section, showing another form of lock. Fig. 10 is a similar view showing the parts in their locked position. Fig. 11 is a perspective detail, with a portion broken away, of the femalo'portion of the lock shown in Figs. 9 '1 and 10.

Likenumerals of. reference indicate like lieferring to the drawings, 1 designates the frame of the cultivator, 2 the arched axle, 3 the gangframe, it the mast, 5 the pendulum bar connecting said mast and gang frame, 6 the lifting lever fulcrumed at 'Z on a depending portion 8 of the segment a counterbalancing axle and a connection between the axle and an arm on the rock shaft are employed. l. i

.In the present construction a bar li2 is it pivot-ally connected atone end to the mast, as at 13,.said bar extending substantially parallel with the frame 1, being slightly inclined downwardly and forwardly, as seen 1n Fig. 1, and to the rear end of this bar at apoint slightly above its fulcrum there is attached, as at 14, one end of a spring 15, the

other end of which is attached at 16,111 any suitable manner, to some fixed part of the frame as the transverse L-bar 16, as seen in Fig. 1. The other end of this bar 12 is provided with a notch 17 as 'seen inFigs.

' tically formed at the upper end with a bifurcation, the end of the bar 12 being provided' with a lateral pin or projection 20 which serves to prevent its being entirely withdrawn from its slot, as will be understood upon reference to Fig. 1. The lower end of the slot or'bifurcation 18 is closed by a cam or toe 21 which projects laterally beyond. the face of said bar, as seen in-Figs. 3 and 4, for a purpose which will soon be made clear.

The bar 19 is pivotally connected, as at 23, with the bar 22 and the latter is pivotally connected, as at 24, with the forward end of the downwardly extended angular member 6 of the lifting'lever, as seen in'Fig. 1.

This rear end of the bar 22 may be provided with a plurality of openings 25, as seen in Fig. 1, toprovide for adjustment of the connection between said bar 22 and theangular .member 6? of the lifting lever when occasion may require." The bar 19 is mounted to freely slide in a yoke or the like19 carried by the bar 22, as seen clearly in Fig.2, so that the bar 19 has, in. addition to its pivotal movement, freedom'of endwise movement within certain limits in said yoke.

20 is a rod extending parallel with the L-bar 16 and serving to connect thetwo bars 19 so that they may be operated simultaneously,'ifdesired. This construction is shown clearly in-Fig. 2, but is not absolutely required.

Extending transversely of the slot or bifurcation 18 of the bar 19 is a pin 26, as seen best in Fig. 4, for cooperation with the notch 17 of the bar 12.. The forward end of the bar 22 is pivotallyconnected, as at 27, with the arm28 movable with the rock shaft 29, which latteris connected with theaXle 2 by means, of the rod 30, a spring 31 being employed, as seen in Fig. 1, the rear end of which is connected with the hook32 on the arm 33 depending from the main frame 1.

When the gang frame is down, in the position indicated by full lines in Fig. 1, with the mast 4 in its rearward position, as incli- 1 l cated. by full lines, and thelever 6 in its rearward position, as also shown by full l1nes, the bar 12 isalso 1n its rearward posi- :tion and the notch 17 is out of engagement with its cooperating pin 26, the bar 19 and the member 22 being in the positions indicated by full lines in said Fig. 1. lVhen the lever 6 is moved into the position indicated by dotted lines in Fig. 1, the supporting wheels are thrown to the rear, the crank aXle 2 being thrown into the rcarwardlv inclined position indicated by dotted lines, and the gang frame 3 is elevated into the position 'in which it is seen in dotted lines in said Fi 1, the rock shaft 29 and the bars 22 and 19 also being moved rearward to the position indicated by dotted lines. The bar 12 thrown forwardly until its notch 17 engages over the transverse pin 26, when the spring 15 exerts its influence to hold the parts in such locked position. When the lever (3 is moved from its dotted line position in F 1 toward its full line position in said figure, the mast and pendulum bar are moved roarward, and as soon as the mast reaches a perpendicular position, further movement; of the mast and lover to the rear causes the too or cam 21 to elevate the forward end. of the bar 12 so that the same is raised sullicicnlly to disengage the notch 17 from the pin 26, when the said bar 12 rides freely upon the toe or cam 21, as indicated by the inclined or dotted lines in Fig. 4.

It will be evident that the parts hereinbcfore described as constituting the locking and releasing mechanism will work equally as well in an inverted position, that is with the male and female portions disposed beneath the main frame instead of above, the operation, of course, being the reverse.

In Figs. 6 to 11 are shown two other forms of embodiment of the invention, both of which operate in substantially the same manner.

In Figs. 6, 7 and8, 34 is a member the thereof and 36 being a member the equivalent of the bar 19 and having at its free end a projection 37 adapted for cooperation with said slot or opening 35 to hold the parts in locked position. The member 36 is designed to be pivotally connected with the bar 22, as at 38, and a cross pin 39 held in the end of the U-shaped member 34 is employed in lieu of the cam or toe 21 in the form shown in Figs. 1, 2, 3 and 4.

In Figs. 9, 10 and 11 there is shown a form of the invention in which 40 represents a member U-shaped in cross section having at one end the open ended slot 41 in the bend of said member and in the side walls thereof the longitudinal slot 42 terminating at the inner end of the right-angled slot 43. The member 44 constituting the other portion of the lock has a pin 45 projecting therefrom adapted to ride in the slots 42 and to engage in the right-angled portion 43 when the parts are in locked position. The portion 46 of the member 44; which'projects through and beyond the lower edge of the member or toe 21 in Figs. 1, S2,, 3 and 4-.

It will be noted from the above that all of the forms hereinbefore described operate in substantially the same manner. When the lever is moved to the rear, the male portion of the lock is automatically moved so as to disengage the two interengagingv members or portions and when the lever 6 is moved forward, the parts are brought into interlocking engagement where they are firmly held until the lever is moved into the opposite direction. The upper end of the member 44 is designed to be mounted upon a pivot 48, as shown.

The different forms of lock hereinbefore described can be used equally as well upon that class of cultivators in which the mast is so pivoted as to extend below the main frame, the operation being the same and the various forms of locks capable of use either in the relative positions in which they are herein shown, or in their inverted positions, as will be readily understood.

Modifications in details may be resorted to without departing from the spirit of the invention or sacrificing'any of its advantages.

IVhat is claimed as new is 1. In a cultivator, a mast-moving bar, means for moving the same embodying a lifting lever, and an automatic lock and releasing device therefor operable when the lifting lever is raised or depressed, said device embodying slidably engaged members automatically releasable when the mast is moved to its rear position.

2. A cultivator mast, a mast-moving bar pivotally connected thereto, a lifting lever, a member connected therewith, and interengaging slidable members for automatically locking said mast in its forward position and automatically releasable in the opposite direction.

3. A cultivator mast, a mast-moving bar pivotally connected thereto, a lifting lever, a member connected therewith, interengaging slidable members for automatically looking said mast in its forward position, and automatic releasing means operative as the mast is moved to its rearward position.

4. In a cultivator, a device for the purpose described, comprising members movable with relation to each other, interengaging slidable means for locking said members, and a member for automatically moving one of the interengaging members out of operative relation with the other and a lifting lever.

In a cultivator, a device of the class described, comprising a movably mounted mast, a member pivotally connected there with, a member cooperating with said member, said members having interengaging members, a lifting lever and an automatic releasing device for said interengagingmembers embodying slidably engaged elements.

6. In acultivator, a device of the class described, comprising a movably mounted mast, a member pivotally connected therewith, a member cooperating with said member, said members being slidably engaged and having interengaging members, an automatic releasing device for said interengaging members, a lifting lever and a spring connected with one of said members for holding the parts in interengaged relation.-

7 In a cultivator, a device of the class described, comprising a movably mounted mast, a member pivotally connected therewith, a member cooperating with said member, said members embodying slidably engaged elements having interengaging members, an automatic releasing device for said. interengaging members, alifting lever and means for preventing separation of said interengaging members.

8. In a cultivator, a device of the class described, comprising a movably mounted mast, a member pivotally connected therewith, a member cooperating with said member, said members embodying slidably engaged elements having interengaging members, an automatic releasing device for said interengaging members, a lifting lever, a spring connected with one of said members for holding the parts in interengaged relation, and means for preventing separation of said interengaging members.

9. In a cultivator, a device for the pur pose described, comprising two members having sliding engagement with each other, interlocking means on said members, and means carried by one of said members for moving the other member into disengaged position and allowing of freedom of movement thereof and a lifting lever.

10. In a cultivator, a device for the purpose described, comprising two members having sliding engagement with each other, interlocking means on said members, a lifting lever, means carried by one of said members for moving the other member into disengaged position and allowing freedom of movement thereof, and a spring for holding said members in interlocked engagement.

11. In a device of the class described, a movably mounted mast, a lifting lever, cooperating male and female members one of which is connected to said mast and the other to the lifting lever, and a spring con nected to one of said members to assist in moving the mast and in holding said members in interlocked engagement.

12. In a device of the class described, a movably mounted mast, a lifting lever, cooperating interlocking male and female members one of which is connected to said mast and the other to the lifting lever, and nected to one of said members above the 10 a spring connected to one of said members point of attachment of the latter to the mast. to assist in moving the mast and in holding Signed by me at Washington, D. G., this 0 said members in interlocked engagement. 17th day of December, 1913.

,13. In'ja device of the class described a 7' movablvmounted mast, a lifting lever, to- HENRi PETERSEN operating male and female members one of Witnesses:

which isfconnected to said mast and the E. H. BOND, other to the lifting lever, and a spring con- JULIEN E. MATTERN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents,

Washington, D. G. 

